Keep in mind that the programmer (whether it's Gryphon or Evolution) only accesses the PCM diagnostic codes. This mean that any codes in the ABS Controller, Transfer Case Controller, Body Module, Instrument Cluster, etc. are not read. 4x4 codes are often stored in the ABS Controller and therefore wouldn't be displayed.
As for misfire, those would be stored in the PCM for a number of Key Cycles and should be readily available using the "Read DTCs" function from the diagnostics menu.
Take care.
__________________
Bill Cohron - The Mad Doctor  
Power Hungry Performance - The ORIGINAL in Ford performance tuning... Since 1996!
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